If the
Sleep mode option in
Settings > Power is enabled, at low peak times, your phone will turn off the data connection after the screen has been off for 15 minutes and there's no network activity (no downloads, streaming, or data usage). The data connection resumes when you switch the screen back on.

Turn on Airplane mode when you don't need any wireless connections and you don't want to receive calls or messages.

Manage your display

Lowering the brightness, letting the display sleep when not in use, and keeping it simple helps save battery power.

Use automatic brightness (the default), or manually lower the brightness.

Set the screen timeout to a shorter time.

Don't use a live wallpaper for your Home screen. Animation effects are nice to show off to other people but they drain your battery.

Changing your wallpaper to a plain, black background can also help a little. The less color is displayed, the less battery is used.

Set the web browser to auto dim the screen while webpages load. Open the
Internet app, and then tap
> Settings > Accessibility > Dim screen during page loading.

Manage your apps

Many apps run processes or sync data in the background even when you're not using them. If there are apps that you don't need anymore, uninstall them.

If an app came preloaded and can't be uninstalled, disabling the app can still prevent it from continuously running or syncing data. See
Disabling an app.

Limit background data and sync

Background data and sync can use a lot of battery power if you have many apps syncing data in the background. It’s recommended not to let apps sync data too often. Determine which apps can be set with longer sync times, or sync manually.

In Settings, tap
Accounts & sync and check what types of data are being synced in your online accounts. When the battery is starting to run low, temporarily disable syncing some data.

If you have many email accounts, consider prolonging the sync time of some accounts.

In the
Mail app, select an account, tap
> Settings > Sync, Send & Receive, and then adjust the settings under
Sync schedule.

When you’re not traveling from one place to another, sync weather updates of only your current location, rather than in all of your named cities. Open the
Weather app, and then tap
> Edit to remove unneeded cities.

Choose widgets wisely.

Some widgets constantly sync data. Consider removing the ones that are not important from your Home screen.

In
Play Store, tap
> Settings, and then clear
Auto-add widgets to avoid automatically adding Home screen widgets whenever you've installed new apps. Also tap
Auto-update apps > Do not auto-update apps if you're fine with updating apps from
Play Store manually.

Other tips

To squeeze in a little bit more battery power, try these tips:

Tone down the ringtone and media volume.

Minimize the use of vibration or sound feedback. In Settings, tap
Sound and choose which ones you don't need and can disable.

Check your apps’ settings as you may find more options to optimize the battery.